he couldn't understand was more and more students showed interest in the puter games.
A. What； because
B. That, what
C. What； why
D. Why； that
网友回答
A. What； because
B. That, what
(答案→)C. What； why
D. Why； that
解析：主要测试主语从句和表语从句。第一空主语从句；第二空主要应该从句中缺少什么成分来找突破口。译文：他不能理解的是为何越来越多的学生对电脑游戏表现出了兴趣。可以答案和题干双结合来选择最佳答案。